Aiwa HS-TX406 User manual

SERVICE MANUAL
DATA
REVISION
HS-TX406 YU,YL,YZ
STEREO RADIO
CASSETTE PLAYER
BASIC TAPE MECHANISM : 4ZM-2 P5NF,
P5NC
S/M Code No. 09-001-423-0R1
•This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
(S/M Code No. 09-99B-423-0T1)
AHRCA4_COVER.1 & 38.p65 01/13/2000, 11:381

• Design and specifications are subject to change without notice.
SPECIFICATIONS
Frequency range: For using in North and South America
AM: 530 – 1,710 kHz (10 kHz step)
FM1,FM2: 87.5 – 108.1 MHz (200 kHz step)
For using in Europe and other countries
AM: 531 – 1,602 kHz (9 kHz step)
FM1,FM2: 87.5 – 108 MHz (50 kHz step)
For using in Japan <YU,YL ONLY>
AM: 531 – 1,629 kHz (9 kHz step)
FM1,FM2: 76 – 108 MHz
(100 kHz step in 76 – 90 MHz, 50 kHz step in 90 – 108 MHz)
Maximum output: 4 mW + 4 mW (EIAJ/32Ω) <YZ>
15 mW + 15 mW (EIAJ/32Ω) <YU,YL>
Power source: DC 3V using two R6 (size AA) dry cell batteries
Battery life (EIAJ 1 mW output):
Approx. 7 hours using R6P (size AA) manganese batteries
Approx. 22 hours using LR6 (size AA) alkaline batteries
Maximum dimensions: 116.7 (W) x 91.5 (H) x 35 (D) mm (45/8 x 35/8 x 17/16 in.)
Weight Approx.142g (4.97 oz) (excluding batteries)
ACCESSORIES / PACKAGE LIST
1 8A-HRC-901-010 IB,YU(ESF)-IN<YU>
1 8A-HRC-902-010 IB,YU(ESF)-C<YU>
1 8A-HRC-903-010 IB,YZ(ESF)-CIN<YZ>
1 8A-HRC-904-010 IB,YZ(GID)-C<YZ>
1 8A-HRC-905-010 IB,YZ(POHCZ)-C<YZ>
1 8A-HRC-906-010 IB,YL(ESP)-C<YL>
1 8A-HRC-912-010 IB,YL(ESP)-IN<YL>
2 84-447-019-310 CLIP,BELT
3 87-B30-150-110 HEADPHONE,HP-M006A(F)<YZ>
3 87-B30-124-110 HEADPHONE,HP-M028<YU,YL1B>
3 87-B30-145-110 HEADPHONE,HP-M029(T)<YL1>
2
DESCRIPTIONREF. NO. KANRI
NO.
PARTNO.

DESCRIPTIONREF.NO. KANRI
NO.
PARTNO. KANRI
NO.
REF.NO. DESCRIPTIONPARTNO.
ELECTRICAL MAIN PARTS LIST
3
IC
87-A21-235-080 C-IC,LAG668FTF
87-A20-851-040 C-IC,TA2111F
87-A21-049-010 C-IC,LC72343G-9482<YU,YL>
87-A21-149-010 C-IC,TC9322FB-501<YZ>
87-A20-904-080 C-IC,TK11823MTL
TRANSISTOR
89-113-625-080 TR,2SA1362GR
87-026-210-080 CHIP-TR,DTC144EK
87-026-264-080 C-TR,RN1411
87-026-262-080 C-TR,RN1407
89-327-143-080 TR,2SC2714 (0.1W)
87-026-268-080 C-TR,RN2411
87-A30-159-080 C-TR,KTA1298Y
89-327-125-080 CHIP TR,2SC2712GR
DIODE
87-001-142-080 DIODE,1SS294 (100MA)
87-020-027-080 CHIP-DIODE 1SS184
87-A40-260-080 C-ZENER,UDZ2.0B<YU,YL>
MAIN C.B
BPF101 87-A91-682-010 FLTR,GFWB7-C1
C1 87-A11-552-080 C-CAP,S 1200P-50 K B
C2 87-A11-552-080 C-CAP,S 1200P-50 K B
C3 87-015-676-040 E/CAP 47/6.3
C4 87-010-820-040 CAP,E 47-4 (MJ)
C5 87-A11-585-080 C-CAP,S 0.033-25 K B
C6 87-A11-585-080 C-CAP,S 0.033-25 K B
C7 87-A11-722-080 C-CAP,S 0.22-16 Z F
C8 87-A11-722-080 C-CAP,S 0.22-16 Z F
C9 87-010-196-080 CHIP CAPACITOR,0.1-25
C10 87-010-822-040 CAP,E 220-4 (MJ)
C11 87-010-822-040 CAP,E 220-4 (MJ)
C12 87-A11-551-080 C-CAP,S 1000P-50 K B
C13 87-A11-235-080 C-CAP,TN 3.3-4 M AM004R
C14 87-A10-489-080 CAP,E 220-4 7L SR
C15 87-A11-187-080 C-CAP,TN 10-4 AM004R
C16 87-010-196-080 CHIP CAPACITOR,0.1-25
C17 87-A10-489-080 CAP,E 220-4 7L SR
C18 87-A11-550-080 C-CAP,S 820P-50 K B
C19 87-A11-550-080 C-CAP,S 820P-50 K B
C20 87-A11-551-080 C-CAP,S 1000P-50 K B
C21 87-A11-551-080 C-CAP,S 1000P-50 K B
C22 87-A11-187-080 C-CAP,TN 10-4 AM004R<YZ>
C22 87-A11-188-080 C-CAP,TN 22-4<YU,YL>
C23 87-A11-733-080 C-CAP,S 1-16 Z F
C24 87-A11-187-080 C-CAP,TN 10-4 AM004R
C25 87-A11-733-080 C-CAP,S 1-16 Z F
C101 87-010-194-080 CAP, CHIP 0.047
C102 87-010-197-080 CAP, CHIP 0.01 DM
C103 87-010-196-080 CHIP CAPACITOR,0.1-25
C104 87-012-153-080 C-CAP,S 120P-50 CH
C105 87-012-140-080 CAP 470P
C106 87-012-153-080 C-CAP,S 120P-50 CH
C107 87-010-145-080 C-CAP,S 1P-50 CH
C108 87-012-155-080 C-CAP 180P-50CH
C110 87-010-154-080 CAP CHIP 10P
C111 87-012-145-080 C-CAP,S 270PCH<YU,YL>
C112 87-010-311-080 CAP 12P
C113 87-010-154-080 CAP CHIP 10P
C114 87-010-197-080 CAP, CHIP 0.01 DM
C115 87-010-145-080 C-CAP,S 1P-50 CH<YU,YL>
C115 87-010-146-080 CHIP CAP 2PF<YZ>
C117 87-010-196-080 CHIP CAPACITOR,0.1-25
C118 87-010-805-080 CAP, S 1-16
C119 87-010-197-080 CAP, CHIP 0.01 DM
C120 87-010-197-080 C-CAP,S0.01-25<YU,YL>
C120 87-010-183-080 C-CAP,S 2700P-50 B<YZ>
C121 87-012-157-080 C-CAP,S 330P-50 CH
C122 87-012-141-080 CHIP-CAPACITOR,0.22-16F
C123 87-012-141-080 CHIP-CAPACITOR,0.22-16F
C124 87-010-805-080 CAP, S 1-16
C125 87-010-196-080 CHIP CAPACITOR,0.1-25
C126 87-010-196-080 CHIP CAPACITOR,0.1-25
C127 87-010-419-040 CAP,E 4.7-16 5L
C128 87-010-452-080 CAPACITOR,1-16
C129 87-010-426-080 C-CAP,S 0.012-25 B
C130 87-010-426-080 C-CAP,S 0.012-25 B
C131 87-010-213-080 C-CAP,S 0.015-50 B
C132 87-010-213-080 C-CAP,S 0.015-50 B
C133 87-010-822-040 CAP,E 220-4 (MJ)
C136 87-010-178-080 CHIP CAP 1000P
C138 87-016-461-080 C-CAP,S 0.47-16F
C140 87-010-178-080 C-CAP,S 1000P-50<YU,YL>
C140 87-012-156-080 C-CAP,S 220P-50 CH<YZ>
C141 87-010-178-080 C-CAP,S 1000P-50<YU,YL>
C142 87-010-322-080 C-CAP,S 100P-50 CH
C143 87-010-319-080 C-CAP,S 56P-50<YU,YL>
C145 87-010-176-080 C-CAP,S 680P-50 SL<YZ>
C146 87-010-178-080 C-CAP,S 1000P-50 KB<YZ>
C146 87-012-155-080 C-CAP,S 180P-50 J<YU,YL>
C147 87-010-321-080 CHIP CAPACITOR,82P(J)<YZ>
C149 87-010-805-080 C-CAP,S 1-16 ZF<YU,YL>
C149 87-012-140-080 C-CAP,S 470-50 J CH<YZ>
C150 87-010-177-080 C-CAP,S 820P-50 SL
C401 87-A11-718-080 C-CAP,S 0.1-25 Z F<YU>
C401 87-010-196-080 C-CAP,0.1-25<YL,YZ>
C402 87-A11-718-080 C-CAP,S 0.1-25 Z F<YU>
C402 87-010-196-080 C-CAP,0.1-25<YL,YZ>
C403 87-A11-733-080 C-CAP,S 1-16 Z F<YU>
C403 87-010-805-080 CAP, S 1-16<YL,YZ>
C404 87-A11-733-080 C-CAP,S 1-16 Z F<YU>
C404 87-010-805-080 CAP, S 1-16<YL,YZ>
C405 87-015-674-010 CAP 22U-6.3V
CF101 87-A91-162-010 FLTR,PFS450A7
CF102 87-A91-093-010 FLTR,KIT KSKM2CD-AO-003
D101 87-A40-799-040 C-VARI-CAP,KV1610S
D102 87-A40-655-080 C-VARI-CAP,HVU200A
D103 87-A40-655-080 C-VARI-CAP,HVU200A
J1 85-HRL-623-010 JACK,3.5 ST BLK
L1 87-A50-038-010 COIL,RF CHOKE
L101 8A-HRC-605-010 BAR-ANT,MW
L102 8A-HRC-607-010 COIL,FM RF
L103 8A-HRC-606-010 COIL,OSC FM
L104 87-005-742-080 COIL,100UH J SP02
L105 87-A91-063-010 IFT,AM 450KHZ
R9 87-A00-330-080 RES,M/F 220-1/8W 3900PPM
SFR1 87-A91-057-040 C-SFR,3.3K B RHO3AXAN4X
SW1 87-A90-133-110 SW,LEAF LSA1120JAU
TH1 87-026-256-090 THERMISTOR, HT-100
VC101 87-011-252-080 TRIMMMER 10P LAR
VR1 87-A90-981-010 VR,RTRY 20KBX1
FRONT C.B
C205 87-012-170-080 C-CAP,U 8P-50 CH<YU,YL>
C206 87-012-170-080 C-CAP,U 8P-50 CH<YU,YL>
C207 87-A11-056-080 C-CAP,U 1-10 ZF<YU,YL>
C208 87-A11-056-080 C-CAP,U 1-10 ZF<YU,YL>
C209 87-012-286-080 CAP, U 0.01-25<YU,YL>
C210 87-A10-263-080 C-CAP,U 0.1-16 ZF<YU,YL>
C211 87-A10-025-080 C-CAP,U 0.22-16Z<YU,YL>
C212 87-A10-263-080 C-CAP,U 0.1-16 ZF<YU,YL>
C213 87-A11-056-080 C-CAP,U 1-10 ZF<YU,YL>
C214 87-A10-915-080 C-CAP,U 1000P-25<YU,YL>
C215 87-012-278-080 C-CAP,U 2200P-50<YU,YL>

DESCRIPTIONREF.NO. KANRI
NO.
PARTNO. KANRI
NO.
REF.NO. DESCRIPTIONPARTNO.
4
C216 87-A11-056-080 C-CAP,U 1-10 ZF<YU,YL>
C251 87-012-286-080 CAP, U 0.01-25
C252 87-A11-056-080 C-CAP,U 1-10 Z F
C254 87-A11-056-080 C-CAP,U 1-10 Z F
C255 87-012-167-080 C-CAP,U 5P-50 CH
C256 87-012-337-080 C-CAP,U 56P-50 CH
C257 87-012-170-080 C-CAP,U 8P-50 CH
C258 87-012-286-080 C-CAP,U 0.01-25<YU,YL>
C258 87-010-787-080 CAP, U 0.022-25<YZ>
C259 87-010-452-080 CAPACITOR,1-16
C275 87-A11-056-080 C-CAP,U 1-10 Z F<YZ>
C277 87-A11-056-080 C-CAP,U 1-10 Z F<YZ>
C278 87-A11-056-080 C-CAP,U 1-10 Z F<YZ>
C279 87-A11-056-080 C-CAP,U 1-10 Z F<YZ>
C280 87-012-176-080 CAP 15P<YZ>
C281 87-012-176-080 CAP 15P<YZ>
C282 87-A10-706-080 C-CAP,U 0.33U-16 F Z<YZ>
C284 87-A10-263-080 C-CAP,U 0.1-16ZF<YZ>
C285 87-A10-263-080 C-CAP,U 0.1-16ZF<YZ>
C287 87-A10-263-080 C-CAP,U 0.1-16ZF<YZ>
2SA1362
2SC2714
2SC2712
KTA1298
RN2411
RN1411
RN1407
DTC144EK
TRANSISTOR ILLUSTRATION
C288 87-010-427-080 C-CAP,S 0.039-25 B<YZ>
L251 87-A50-443-080 C-COIL,D-D(C5-S)
LCD201 8Z-HRC-603-110 LCD,ASSY(BAND/TU)19P<YU,YL>
LCD201 88-HRC-610-110 LCD,HS ASSY(BAND/TU)<YZ>
R216 87-022-375-080 C-RES,S 680K-1/10WF<YU,YL>
R217 87-022-374-080 C-RES,S 560K-1/10WF<YU,YL>
R275 87-022-359-080 C-RES,S22K-1/10WF<YZ>
R276 87-022-359-080 C-RES,S22K-1/10WF<YZ>
R277 87-022-361-080 C-RES,S 47K-1/10W F<YZ>
SW213 87-A90-330-080 C-SW,SL 1-1-2 SSSS81
TH201 87-A91-188-080 C-THMS,47K NTH5G1M40B<YZ>
X201 87-A70-082-010 VIB,XTAL 75KHZ
FLEX C.B
8A-HRC-604-010 FF-CABLE, 17P
88
A
Resistor Code
Chip Resistor Part Coding
Figure
Value of resistor
Chip resistor
Wattage Type Tolerance
1/16W
1/10W
1/8W
1608
2125
3216
5%
5%
5%
CJ
CJ
CJ
Form LW t
1.6 0.8 0.45
2 1.25 0.45
3.2 1.6
108
118
128
: A
: A
CHIP RESISTOR PART CODE
0.55
Resistor Code
Dimensions (mm)
Symbol
1/16W 1005 5% CJ 1.0 0.5 0.35 104
Lt
W
B
E
C

LCD DIAGRAM
5 6
LCD, HS ASSY (BAND/TU) <YZ>
GRID ASSIGNMENT
LCD, HS ASSY (BAND/TU) <YU,YL>
GRID ASSIGNMENT
ANODE CONNECTIONANODE CONNECTION

WIRING - 1 (MAIN: 1/2)
7 8
27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U

910
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
WIRING - 1 (MAIN: 2/2)

WIRING - 2 (FRONT: 1/2) <YU,YL>
1211
27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U

1413
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
WIRING - 2 (FRONT: 2/2) <YU,YL>

WIRING - 3 (FRONT: 1/2) <YZ>
1615
27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U

1817
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
WIRING - 3 (FRONT: 2/2) <YZ>

SCHEMATIC DIAGRAM - 1 (MAIN)
2019

SCHEMATIC DIAGRAM - 2 (FRONT) <YU,YL>
2221

SCHEMATIC DIAGRAM - 3 (FRONT) <YZ>
2423

25
IC VOLTAGE CHART
Pin No. AM (V) FM (V) TAPE (V) Pin No. AM (V) FM (V) TAPE (V)
1 1.467 1.455 1.387
20 0 0
3 0.7 0.7 0.3
4 0.8 0.7 0.3
5 0.8 0.7 0.3
6 0.7 0.7 0.3
7 0.7 0.7 0.3
8 2.928 2.895 2.762
9 2.928 2.895 2.762
10 2.929 2.895 2.762
11 0.0249 2.861 0.003
12 0.0252 2.895 0.003
13 0.9 2.877 2.743
14 0.9 2.895 2.761
15 -0.002 0.007 0.005
16 2.251 2.225 2.123
17 2.672 2.615 2.611
18 3.196 3.197 3.011
19 0.008 0.008 0.004
20 0.0133 0.0132 0.0129
21 3.196 3.197 3.011
22 0.646 0.646 0.646
23 -0.002 -0.001 0.001
24 0 0 0
25 0.1725 0.1742 0.1685
26 2.254 2.233 2.129
27 2.925 2.896 2.762
28 0.3051 0.3081 2.756
29 3.065 3.008 –
30 1.499 1.499 1.499
31 1.499 1.499 1.499
32 1.499 1.499 1.499
33 1.5 1.498 1.5
34 1.5 1.499 1.5
35 1.5 1.499 1.5
36 1.5 1.499 1.499
37 1.499 1.5 1.499
38 1.499 1.499 1.499
39 1.499 1.499 1.498
40 1.5 1.499 1.499
41 1.5 1.499 1.499
42 1.499 1.498 1.499
43 1.499 1.499 1.499
44 1.498 1.498 1.499
45 1.514 1.514 1.514
46 1.514 1.514 1.514
47 1.514 1.514 1.515
48 1.514 1.514 1.515
49 1.519 1.519 1.520
50 3.002 3.003 3.005
51 1.975 1.974 1.979
52 0.499 0.499 0.5
53 2.121 2.230 2.126
54 1.369 1.435 0.001
55 2.757 2.897 2.763
56 0.004 1.416 0.001
57 1.349 0.0018 0.001
58 0 0 0
59 0.813 0.799 –
60 0.813 0.799 0.0049
61 1.745 4.88 0.00 48
62 0 0 0
63 0 0 0
64 1.386 1.366 1.289
Pin No. AM (V) FM (V) TAPE (V) Pin No. AM (V) FM (V) TAPE (V)
1 0.0022 0.0021 –
2 0.766 0.731 0.0245
3 -0.0023 -0.019 –
4 1.791 4.94 0.0044
50 0 0
6 2.676 2.692 –
IC, LC72343G-9482 <YU,YL>
IC, TK11823MTL <YU,YL>

26
Pin No. AM (V) FM (V) TAPE (V) Pin No. AM (V) FM (V) TAPE (V)
1 1.486 1.476 1.490
2 1.487 1.477 1.491
3 1.488 1.477 1.490
4 1.477 1.464 1.478
5 1.475 1.464 1.475
6 1.476 1.464 1.480
7 1.478 1.463 1.478
8 1.475 1.462 1.481
9 1.478 1.463 1.479
10 1.476 1.463 1.479
11 1.476 1.463 1.479
12 1.474 1.464 1.480
13 1.477 1.464 1.481
14 1.476 1.463 1.481
15 1.475 1.463 1.479
16 1.475 1.464 1.481
17 1.475 1.463 1.481
18 1.476 1.464 1.480
19 1.476 1.463 1.482
20 1.474 1.464 1.479
21 1.476 1.463 1.479
22 1.475 1.464 1.479
23 1.475 1.463 1.481
24 1.477 1.463 1.480
25 1.477 1.464 1.479
26 1.474 1.463 1.480
27 0.0024 0.0032 0.0017
28 0.0023 0.0033 0.0016
29 0.0025 0.0032 0.0017
30 0.0024 0.0032 0.0017
31 2.663 2.691 2.755
32 2.661 2.690 2.755
33 2.772 2.690 2.754
34 0.0027 0.0035 0.0019
35 1.083 2.608 2.674
36 2.136 2.690 2.754
37 2.616 0.0036 2.709
38 0.0028 2.690 2.755
39 0.028 0.0006 0.0022
40 2.139 2.079 2.132
41 2.609 2.545 2.711
42 1.460 1.475 1.473
43 0.855 0.0001 -0.0001
44 0.426 0.442 0.444
45 2.097 2.078 2.090
46 0.0027 0.0035 0.0017
47 2.772 2.690 2.780
48 0 0 0
49 2.334 2.331 2.326
50 2.874 2.812 –
51 0.731 0.762 2.765
52 1.032 1.026 0.0605
53 0 0 0
54 0.006 1.404 0.0003
55 0.699 0.0014 0.0003
56 2.776 2.698 2.787
57 2.280 2.205 2.232
58 0.2304 0.2358 0.2189
59 0.3 0.31 0.294
60 1.383 1.379 1.387
61 2.944 2.933 2.955
62 0.741 0.739 0.743
63 2.226 2.218 2.223
64 1.489 1.485 1.495
Pin No. AM (V) FM (V) TAPE (V) Pin No. AM (V) FM (V) TAPE (V)
1 0.0031 0.0027 –
2 0.767 0.743 0.0189
3 0.0007 -0.0145 –
4 1.057 4.29 0.0039
50 0 0
6 2.595 2.641 –
IC, TC9322FB-501 <YZ>
IC, TK11823MTL <YZ>

27 28
IC BLOCK DIAGRAM
IC DESCRIPTION
IC, LAG668FTF Pin No. Pin Name I/O Description
25 S22 O LCD segment output. (Not used)
26 S23 O LCD segment output. (Not used)
27 K0 I Key matrix input.
28 K1 I Key matrix input.
29 K2 I Key matrix input.
30 K3 I Key matrix input.
31 T0 O Key return timing output.
32 T1 O Key return timing output.
33 T2 O Key return timing output.
34 T3 O Key return timing output. (Not used)
35 FM / AM O 'H' : FM out, 'L' : AM out.
36 FM MN / ST O 'H' : FM Stereo out, 'L' : FM Mono out.
37 S-BASS ON/OFF O S-BASS switching output. 'H': OFF, 'L' :ON.
38 ROCK - Not used.
39 DES I
These two input ports determine the destination.
40 DES I
In Clock mode: 'H' = LCD display TAPE. 'L' : = LCD display TIME.
41 TAPE / ST I In FM Stereo mode : 'H' = FM ST indicator will Flash.
'L' = FM ST indicator will not Flash.
42 POWER CHECK I A / D in for power supply voltage level.
43 REMOTE I A / D in for remote controller.
44 POWER SW O 'H' : Power Off, 'L' : Power On.
45 HOLD I 'H' : Hold Off, 'L' :Hold On.
46 BUZZER O Buzzer output.
47 MUTE O Mute output.
48 TEST - Connected to ground.
49 WAKE UP I Wake up the system from Memory back-up mode.
50 TUNE IN I 'L' : LCD display 'TUNED'.
51 TU OUT O When tuner on, 'L' level is output.
52 PLL OUT O Phase comparison output.
53 G ND - Ground terminal.
54 FMIN I FM oscillator signal input.
55 AMIN I AM oscillator signal input.
56 VDD - Supply voltage terminal.
57 RESET I System reset input.
58 XOUT - Crystal 75kHz oscillator pin.
59 XIN - Crystal 75kHz oscillator pin.
60 VXT - Power supply for crystal oscillator.
61 VLCD - Reference voltage for LCD driver. (Not used)
62 C1 - Voltage doubler boosting.
63 C2 -
64 VEE - Connected to ground through a coupling capacitor.
Pin No. Pin Name I/O Description
1 COM 1 O LCD commn output 1.
2 COM 2 O LCD commn output 2.
3 COM 3 O LCD commn output 3.
4 S1 O LCD segment output.
5 S2 O LCD segment output.
6 S3 O LCD segment output.
7 S4 O LCD segment output.
8 S5 O LCD segment output.
9 S6 O LCD segment output.
10 S7 O LCD segment output.
11 S8 O LCD segment output.
12 S9 O LCD segment output.
13 S10 O LCD segment output.
14 S11 O LCD segment output.
15 S12 O LCD segment output.
16 S13 O LCD segment output.
17 S14 O LCD segment output.
18 S15 O LCD segment output.
19 S16 O LCD segment output.
20 S17 O LCD segment output.
21 S18 O LCD segment output.
22 S19 O LCD segment output.
23 S20 O LCD segment output. (Not used)
24 S21 O LCD segment output. (Not used)
IC, TC9322FB-501 <YZ>

1 XOUT - Crystal 75kHz oscillator pin.
2 TEST2 - Connected to ground.
3 PA3 I Key matrix input.
4 PA2 I Key matrix input.
5 PA1 I Key matrix input.
6 PA0 I Key matrix input.
7 PB3 O Key return timing output. (Not used)
8 PB2 O Key return timing output.
9 PB1 O Key return timing output.
10 PB0 O Key return timing output.
11 FM / AM O 'H' : FM out, 'L' : AM out.
12 FM ST / MN O 'H' : FM Stereo out, 'L' : FM Mono out.
3
13 S-BASS ON / OFF O S-BASS switching output. 'H' : OFF, 'L': ON.
14 NC - Not connected.
15 DES I These two input ports determine the destination.
16 DES I
In Clock mode: 'H' = LCD display TAPE. 'L' = LCD display TIME.
17 TAPE / ST I In FM Stereo mode : 'H' = FM ST indicator will Flash.
'L' = FM ST indicator will not Flash.
18 POWER CHECK 1 I Power check input port.
19 NC - Not connected.
20 BUZZER O Buzzer output.
21 POWER CHECK 2 I Power check input port.
22 POWER CHECK 3 I Constant 0.7V reference voltage for power check function.
23 REMOTE I A / D in for remote controller.
24 G ND - Ground terminal.
25 POWER SW O 'H' : Power Off, 'L' : Power On.
26 HOLD I 'H' : Hold Off, 'L' : Hold On.
27 MUTE O 'H' : Mute Off, 'L' : Mute On.
28 TU OUT O 'H' : Tuner Off, 'L' : Tuner On.
29 TUNE IN I 'L' : LCD displays 'TUNED'.
30 S15 O LCD segment output.
31 S14 O LCD segment output.
32 S13 O LCD segment output.
33 S12 O LCD segment output.
34 S11 O LCD segment output.
35 S10 O LCD segment output.
36 S9 O LCD segment output.
37 S8 O LCD segment output.
38 S7 O LCD segment output.
39 S6 O LCD segment output.
40 S5 O LCD segment output.
3029
Pin No. Pin Name I/O Description Pin No. Pin Name I/O Description
41 S4 O LCD segment output.
42 S3 O LCD segment output.
43 S2 O LCD segment output.
44 S1 O LCD segment output.
45 COM4 O LCD commn output 4.
46 COM3 O LCD commn output 3.
47 COM2 O LCD commn output 2.
48 COM1 O LCD commn output 1.
49 DBR4 - LCD reference voltage.
50 DBR3 - LCD reference voltage.
51 DBR2 - Voltage doubler boosting.
52 DBR1 - Voltage doubler boosting.
53 RESET I System reset input.
54 HCTR - Not used.
55 VD D - Supply voltage terminal.
56 FMIN I FM oscillator signal input.
57 AMIN I AM oscillator signal input.
58 GN D - Ground terminal.
59 PLL OUT O Phase comparison output.
60 LPF OUT I LPF output.
61 VT I VT input.
62 GN D - Ground terminal.
63 TEST 1 - Connected to ground.
64 XIN - Crystal 75kHz oscillator pin.
IC, LC72343G-9482 <YU,YL>

ADJUSTMENT
<RADIO SECTION>
1. AM IF Adjustment
L105 ....................................................................... 450kHz
2. AM VT Check
Settings : • Test point : TP1 (VT)
Method : Set to AM 530kHz and check that the test point
is more than 0.8V. Then set to AM 1710kHz
and check that the test point is less than 8.7V.
3. AM Tracking Adjustment
L101 ....................................................................... 630kHz
VC101 .................................................................. 1440kHz
3231
4. FM VT Adjustment
Settings : • Test point : TP1 (VT)
• Adjustment location : L103
Method : Set to FM 76MHz and adjust L103 so that the
test point becomes 1.0V ± 0.1V. Then set to
FM 108.1MHz and check that the test point
is less than 8.5V.
5. FM Tracking Adjustment
L102 ..................................................................... 76.0MHz
<TAPE PLAYER SECTION>
6. Tape Speed Adjustment
Settings : • Test tape : TTA–100
(TAPE CENTRE)
• Test point : Phones Jack (J1)
• Adjustment location : SFR1
• Tape/radio : TAPE
• S-BASS : OFF
• Volume : NON-CLIP
(MAX -10dB )
Method : Play back the test tape and adjust SFR1 for
3000Hz ± 10Hz. Then confirm WOW is less than
0.50%.
7. Azimuth Adjustment
Settings : • Test tape : TTA–330/TTA–420
• Test point : Phones Jack (J1)
• S-BASS : OFF
• Tape/radio : TAPE
• Volume : MAX
• Adjustment location : Headazimuth
adjustment screw
Method : Play back the 8KHz signal of the test tape and
adjust the screw so that the output becomes
maximum.
8. Maximum Output Power Adjustment
Settings : • Test tape : TTA–210
• Volume : MAX
• S-BASS : ON
Method : For <YU, YL> :
• Short the shorting point Band Conly.
For <YZ> :
• Short the shorting point Band C.
• If output is less than 1.2mW(0.14V), short the
shorting point Aand D.
• If output is more than 3.9mW(0.25V), open the
shorting point Band Cand short the
shorting point Aand D .
MAIN C.B
A
PHONES
J1
6
VR1
VOLUME
SFR 1
6
1
3
L101
(BAR-ANT)
5
4
2
4
3
L105
L103
L102
VC101
TP1(VT)
P HEAD
FWD
7
IC101
8
8
C
DBA
*
*
*
*
NOTE :
: On the other componets side.
*

DESCRIPTIONREF. NO. KANRI
NO.
PARTNO. KANRI
NO.
REF. NO. DESCRIPTIONPARTNO. DESCRIPTIONREF. NO. KANRI
NO.
PARTNO. KANRI
NO.
REF. NO. DESCRIPTIONPARTNO.
MECHANICAL PARTS LIST 1 / 1MECHANICAL EXPLODED VIEW 1 / 1
3433
1 8A-HRC-002-010 WINDOW,LCD
2 86-HRM-205-010 SPR-T,CLICK
3 8A-HRC-031-010 LID,CASS<[S]YU,[S]YL1,[S]YL1B>
3 8A-HRC-033-010 LID,CASS BLU<[LM]YU>
3 8A-HRC-032-010 LID,CASS YZ<EXCEPT [S]YU,[LM]YU,[S]YL1,[S]YL1B>
4 8A-HRC-004-010 BTN,FUNCTION
5 8A-HRC-201-010 COVER, PCB<EXCEPT [LM]YU>
5 8A-HRC-204-010 COVER, PCB BLU<[LM]YU>
6 8Z-HRC-204-010 PLATE,HEAD<EXCEPT [LM]YU>
6 8Z-HRC-207-010 PLATE,HEAD BLUE<[LM]YU>
7 8A-HRL-202-010 SPR-P,CASS
8 8Z-HRC-002-010 FRAME,CENTER<EXCEPT [LM]YU>
8 8Z-HRC-014-010 FRAME,CENTER BLUE<[LM]YU>
9 8Z-HRC-205-010 BAT-CONTACT,(+)
10 8Z-HRC-202-010 HLDR,ANT
11 8Z-HRC-206-110 BAT-CONTACT,(-)
12 8Z-HRC-035-110 CABI,REAR ASSY BLUE YU<[LM]YU>
12 8Z-HRC-036-110 CABI,REAR ASSY YU<[S]YU,[S]YL1,[S]YL1B>
12 8Z-HRC-011-110 CABI,REAR YZ<EXCEPT [S]YU,[LM]YU,[S]YL1,[S]YL1B>
13 8Z-HRC-004-010 LID,BATT<[S]YZ>
A 87-264-525-310 SCREW, V+1.7-2.5
B 87-067-756-010 SCREW HINGE 1.4-4
C 87-B10-078-010 VT2+1.7-10 (3) BLK
D 87-067-384-010 SCREWVT1.4-3.5HL
E 87-067-732-010 TAPPING SCREW, VT1.4-3
Basic color Color Basic color Color Basic color Color
symbol symbol symbol
B Black C Cream D Orange
G Green H Gray L Blue
LT Transparent Blue N Gold P Pink
R Red S Silver ST Titan Silver
T Brown V Violet W White
WT Transparent White Y Yellow YT Transparent Yellow
LM Metallic Blue LL Light Blue GT Transparent Green
LD Dark Blue DT Transparent Orange GM Metallic Green
YM Metallic Yellow
COLOR NAME TABLE